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Finding the Fourth Proportional to 436,282.63, 654,424.13 and 136,786.54

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Solution

The fourth proportional to 436,282.63, 654,424.13 and 136,786.54 is: 205,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,282.63 : 654,424.13 = 136,786.54 : x
  2. Step 2: Convert to fraction form
    436,282.63/654,424.13 = 136,786.54/x
  3. Step 3: Cross multiply
    436,282.63x = 654,424.13 × 136,786.54
  4. Step 4: Simplify right side
    436,282.63x = 89,516,412,435.21
  5. Step 5: Solve for x
    x = 89,516,412,435.21/436,282.63
  6. Step 6: Final answer
    x = 205,179.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.